Broadband wavelength converter based on high-nonlinearity flattened-dispersion optical fibers and converting method of broadband wavelength converter

Abstract

The invention relates to a broadband wavelength converter based on high-nonlinearity flattened-dispersion optical fibers, which comprises a signal light input optical path, a continuous light source, a continuous light input optical path and a Sagnac interference ring. The Sagnac interference ring comprises high-nonlinearity flattened-dispersion optical fibers, a first coupler and a second coupler, wherein the first coupler is used for transmitting continuous light to the Sagnac interference ring, and the second coupler is used for coupling signal light to be converted with the continuous light outputted by the first coupler and transmitting to the Sagnac interference ring. The invention further relates to a converting method of the broadband wavelength converter, which includes: using the second coupler to receive the signal lights to be converted; using the first coupler to receive the continuous light in a target conversion wavelength; and using the first coupler to output wavelength-converted signal light and the original-wavelength signal light. The broadband wavelength converter and the converting method have the advantages that wavelength conversion with wavelength interval more than 50nm can be realized; the converter is quick in response speed and can reach femtosecond level theoretically; the length of the Sagnac interference ring is only 10m; and the broadband wavelength converter is compact in structure, cost-saving and low in power consumption.

Description

technical field [0001] The invention relates to the technical field of all-optical signal processing and the technical field of nonlinear fiber optics, in particular to a broadband wavelength converter and a conversion method based on high nonlinear dispersion flat optical fiber. Background technique [0002] Information technology is developing at a speed beyond people's imagination. At the same time, people's demand for communication quality and experience is increasing. Therefore, higher requirements are put forward for communication technology. The all-optical intelligent reconfigurable communication network is recognized as the next-generation communication method to solve the communication bottleneck. In an all-optical intelligent reconfigurable communication network, in order to make full use of network resources, it is necessary to dynamically adjust the resources to reduce network congestion and improve the reconfigurability and intelligence of the optical network. ...

AI Technical Summary

Problems solved by technology

As mentioned before, the working speed of SOA is limited by the recovery time of carriers, so the working speed of the device is only on the order of nanoseconds, and the placement of SOA in the device requires an accurate offset, and an inappropriate offset The amount will make the conversion effect not meet the design requirements

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